Fix naming convention inconsistency and formats in test_rpc.py
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/24407
Reviewed By: xush6528
Differential Revision: D16830605
Pulled By: mrshenli
fbshipit-source-id: 795962e56a8433f8015f44b6ed4b6183488b00d6
